LET ME TRY AGAIN SOMETHING HAPPENED TO FIRST MSG
THOSE OF YOU WHO ARE INTERESTED IN FILTER DESIGN PLEASE CHECK
THIS SITE. www.aade.com/filter32/dishal.htm
THE AUTHOR, JOHN PIVNICHY, WROTE AN EXCELLENT ARTICLE IN JAN1993
73 MAGAZINE DESCRIBING TWIN FILTERS FOR USB AND LSB. HE IS ALSO
THE AUTHOR OF "LADDER CRYSTAL FILTERS" PUBLISHED BY MFJ ENTERPRIZES,
STARKVILLE, MS.
THE BASIC PREMISE OF THE AUTHORS WORK IS THAT SHUNT AND SERIES FILTERS
HAVE DIFFERENT SHAPES SHUNT BEING BEST FOR LSB AND SERIES FOR USB.
HIS WORK ALSO MOVES THE FILTERS SO THAT BOTH HAVE A COMMON INTERCEPT
AND USE SINGLE CARRIER FREQ FOR BOTH.
INCLUDED IN THIS SITE IS A LINK TO FREE DOWNLOAD OF FILTER DESIGN
SOFTWARE.
ENJOY AND LEARN
PAUL DAULTON K5WMS
